CBSE
Multiple Choice QuestionsWhich of the following is not required for any of the techniques of DNA fingerprinting available at present?
Zinc finger analysis
Restriction enzymes
DNA-DNA hybridization
DNA-DNA hybridization
Which part of the tobacco plant is infected by Meloidogyne incognitia?
Leaf
Stem
Root
Root
Read the following four statements (I - IV) about certain mistakes in two of them
I .The first transgenic buffalo, Rosie produced mile which was human alpha - lactal bumin enriched
II. Restriction enzymes are used in isolation of DNA from another macro -molecules.
III. downstream processing is one of the steps of R-DNA technology.
IV. Disarmed pathogen vectors are also used in the transfer of R - DNA into the host.
Which are the two statements having mistakes?
Statement (II) and (III)
Statements (III) and (IV)
Statements (I) and (III)
Statements (I) and (III)
Golden rice is a genetically modified crop plant where the incorporated gene i's meant for
Vitamin B
Vitamin C
Omega 3
Omega 3
Tobacco plants resistant to a nematode have been developed by the introduction of DNA that produced (in the host cells).
Both sense and anti-sense RNA
A particular hormone
An antifeedant
An antifeedant
The crops engineered for glyphosate are resistant/ tolerant to
fungi
bacteria
insects
insects
The first clinical gene therapy was given for treating
diabetes mellitus
chicken pox
rheumatoid arthritis
rheumatoid arthritis
Green revolution in India occurred during
1960's
1970's
1980's
1980's
A pleiotropic gene
is expressed only in primitive plants.
is a gene evolved during Pliocene
controls a trait only in combination with another gene
controls a trait only in combination with another gene
In Bt cotton, the Bt toxin present in plant tissue as pro-toxin is converted into active toxin due to
alkaline pH of the insect gut
acidic pH of the insect gut
action of gut microorganisms
action of gut microorganisms
